8.7/15kV Cold Shrink Cable Accessories: Kits
Cold-shrink termination and joint kits for 8.7/15kV cable, built in silicone rubber and installed by removing a spiral core: no heat gun, torch or power source anywhere in the process. Service range -50℃~+200℃, 3-core and single-core formats, outdoor and indoor versions, referenced to IEEE 386. The installation is quick; the storage discipline and the alignment before core release are what decide the result.
Specification
| Material | Silicone Rubber |
|---|---|
| Operating temperature | -50℃~+200℃ |
| Shrink method | Cold shrink : removable spiral core |
| Voltage class | 8.7/15KV |
| Wall type | Multi-layer |
| Standards | IEEE 386 |
| Kit types | 3-core / single-core; outdoor / indoor termination & joint |
The support-core mechanism
Every cold-shrink component ships pre-stretched on a spiral plastic core. During manufacture the silicone body is expanded onto the core and held there; it stays in that compressed state on the shelf and in your truck. At installation you slide the assembly over the prepared position, align it, and pull or unwind the core. Released from the core, the silicone contracts under its own elastic memory and seats onto the cable with constant radial pressure: no recovery temperature to control, no overheating risk, no heat tool at all. That is the whole mechanism, and it is also why two constraints exist: the components must be stored correctly while pre-stretched, and the position must be right before the core comes out, because a released silicone body grips where it is.
Where this kit is the practical choice
No heat means the kit goes where hot work is banned or impractical: switchgear rooms with live adjacent sections, manholes and vaults, confined spaces, refineries, mining sites. It also removes crew-skill variance in the heating step. The radial pressure is set by the material, not by the operator's torch technique. The trade-off is storage discipline and a per-position cost above heat-shrink; where crews already run heat tools and storage is ordinary, the heat-shrink kits do the same system job economically.
Storage and shelf conditions
Because the components sit pre-stretched until the moment of use, storage is a specification, not a suggestion:
- Keep original packaging until the component is at the position : the packaging is part of the shelf system.
- Cool, dry store, out of sunlight : UV and heat accelerate the loss of recovery force in pre-stretched silicone.
- Observe shelf life. A kit held past its shelf life may install but fail to grip to specification. Confirm the shelf-life value and storage temperature window with us at order time; the verified values will be published here.
- Stock rotation. First in, first out : oldest kits install first.
Installation preparation
- Prepare the cable. Strip sheath, screen and insulation to the kit sheet's lengths; clean the insulation surface as the sheet requires.
- Slide components on before connecting. As with all accessory work, components go over the cable end before the connector is crimped.
- Make the connection and complete the preparation steps the kit sheet orders.
- Align, then release. Position each cold-shrink body exactly, then pull the core steadily : the body seats with constant pressure. Do not attempt to reposition after release.
- Complete in sequence per the kit sheet to the outer sealing layer.
Frequently asked questions
How does cold-shrink installation actually work?
Each component arrives pre-stretched on a spiral plastic core. You slide the assembled component over the prepared cable position, align it exactly, and then unwind or pull the core out. The silicone body, held compressed by the core until that moment, contracts onto the cable under its own elastic memory and grips with constant radial pressure. There is no heat gun, torch or power source in the whole process, and nothing to get over- or under-heated.
What storage and shelf conditions do cold-shrink kits need?
The components stay pre-stretched on their cores until use, so storage is a real specification: keep kits in original packaging, away from direct sunlight and heat sources, in a cool dry store. Pre-stretched silicone held beyond its design shelf life loses recovery force. The kit may still install but not grip to specification. Confirm shelf life and the storage temperature window with us at order time; the values are being verified and will be published on this page.
What preparation does the cable need before the core is pulled?
Standard MV preparation: strip sheath, screen and insulation to the lengths on the kit sheet, clean the insulation surface, and slide all components on before the connector is crimped. The cold-shrink difference is alignment discipline. Once a component's core is pulled, the body grips exactly where it sits, with no heat-driven second chance. Position each component precisely before releasing the core.
Which core counts and positions does this 8.7/15kV range cover?
The range is built as 3-core and single-core kits, in outdoor and indoor termination versions and intermediate joint versions. Confirm the conductor cross-section and the core count per position when ordering. The body and stress-control components are selected per that data.
What standard do the cold-shrink kits reference?
The kits reference IEEE 386, the standard for separable insulated connector systems and cable accessories. Batch certificates are issued per shipment; tell us the target market (EU / US / Asia / utility spec) and we align the documentation to your filing.
What is the service temperature range and why is it wider than the heat-shrink kits?
The silicone rubber bodies are rated -50℃~+200℃ continuous. The wider top end comes from the material, not the mechanism: silicone keeps elasticity at temperatures where polyolefin would relax. In switchgear rooms and other enclosures with high continuous ambient, that headroom is a selection argument, but verify the actual temperature at your position before relying on the upper range.
Request a quote for 8.7/15KV Cold Shrinkable Power Cable Accessories
Send the voltage class, conductor cross-section, core count per position, indoor/outdoor duty and quantity. We return the kit part numbers, contents, shelf-life data and lead time.
Certifications & Compliance
8.7/15KV Cold Shrinkable Power Cable Accessories references the following standards. Certificates are supplied per batch on request.
Tell us the target market (EU / US / Asia / utility spec) and we align the documentation to your filing.
View our verified UL / SGS / RoHS certificates →
Size range & specification notes
3-core and single-core outdoor/indoor termination and joint kits for 8.7/15kV cable. Conductor ranges, OD coverage and verified shelf-life values are published after verification: see the DATA_REQUIRED note above.